A Soapless Tunnel Washing Truck in Switzerland Cleans Walls With Water Pressure and Brushes
Colas Suisse, road work company in Lausanne, Switzerland, has posted a satisfying video featuring their innovative and eco-friendly tunnel washing truck, a vehicle that uses water pressure, without the use of soap, and an assortment of attached scrubbing brushes to clean dirt and soot off of tunnel walls and ceilings.
Justin Page
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